FEATURES:• Self-leveling range from -12% to +40%• ±10 arc second accuracy• Fully-compensated cross axis• The DG813 pipe laser works over a distance of 500 feet using the RC803 remote control, providing full operation in a single set-up task• The DG813 pipe laser comes with the SF803 Spot Finder which increases its productivity, automatically aligns the laser to the center of the spot finder, and also calculates the grade• Spot align search up to 45 degrees• Line centering, line set, and line alert features